Mitilini weather in September 2025

Q: How hot is it in Mitilini in September?

Daytime temperatures usually reach 27°C in Mitilini in September with low heat and humidity, falling to 17°C at night.

Q: How sunny is it in Mitilini in September?

There are normally 11 hours of bright sunshine each day in Mitilini in September - that's 85% of daylight hours.

Q: How warm is the sea around Mitilini in September?

The average sea temperature around Mitilini in September is 22°C.

Q: Does it rain in Mitilini in September?

There are usually 5 days with some rain in Mitilini in September and the average monthly rainfall is 13mm.

Expect 27°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Mitilini in September. Check more long-term weather averages for Mitilini in September before you book your next holiday to Lesbos in 2025/2026.

27
27°C max day temperature
11
11 hours of sunshine per day
5
5 days with some rainfall
17
17°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
13
13 mm of monthly rainfall
6
6 (High) UV index
22
22°C sea temperature

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The September weather guide for Lesbos (Mitilini) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)